Comparison

Interval(x) vs Interval Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Interval(x)

An open-source interval timer designed for precision and privacy. Configure work and rest periods with millisecond accuracy for training or daily routines. It offers a transparent, data-free experience for users who value control and simplicity.

Highlights
  • Open Source Transparency
  • Zero Data Collection
  • Millisecond Interval Precision
  • Customizable Work/Rest Periods
  • Lightweight and Power-Efficient
  • Privacy-First Design
Features
Read full description

Interval(x): Open Source Precision for Engineers Engineered for precision and transparency, Interval(x) is the ultimate interval timer for those who value control, simplicity, and privacy. Built by engineers for engineers, this app delivers unmatched timing accuracy without the frills—or the data collection. Why Engineers Love Interval(x): Open Source: Fully transparent and modifiable—because we believe in community-driven development. Zero Data Collection: Your data is yours. Interval(x) operates without tracking, analytics, or unnecessary permissions. Customizable and Precise: Configure work/rest intervals down to the millisecond to match your exact training needs. Efficient Design: Lightweight, power-efficient, and designed for those who demand performance. Privacy-First, Community-Driven Interval(x) is a privacy-focused tool that doesn't track your activity or collect your data. Its open-source codebase is available for review and contributions, ensuring transparency and trust. Whether you're training for endurance, strength, or just optimizing your daily routine, Interval(x) provides the precision and simplicity you need without sacrificing your privacy. Download Interval(x) today and experience fitness on your terms. Power your workouts with open source freedom and engineering-grade accuracy.

About

Interval Timer

This app provides a customizable interval timer for various training styles like HIIT, Tabata, and HYROX. It features clear voice cues, a large display, and quick setup for focused workouts without distractions.

Highlights
  • Customizable warm-up, work, rest, and round times
  • Quick setup for immediate training
  • Clear voice cues and beeps
  • Large, easy-to-read display
  • Supports HYROX, HIIT, Tabata, and more
Features
Read full description

Interval Timer is the simple, powerful timer built for serious training. Whether you compete in HYROX, push through HIIT, or need precision for Tabata, AMRAP, or EMOM workouts, this app keeps you on pace and focused. Why athletes choose Free Interval Timer: Fully customizable warm-up, work, rest, and round times Quick setup so you can start training in seconds Clear voice cues and beeps so you never have to look at your phone Large, easy-to-read display for fast adjustments Works for HYROX, HIIT, Tabata, CrossFit, cardio, strength, and more Perfect for: HYROX race training and simulations High Intensity Interval Training (HIIT) Tabata, AMRAP, and EMOM sessions CrossFit and functional fitness Strength training, weightlifting, and bodybuilding Running, cycling, rowing, and ski erg workouts Yoga, pilates, stretching, and recovery Most timers are complicated, cluttered, or overpriced. Free Interval Timer is clean, easy to use, and built for athletes who want performance without distractions. Download today and train like a pro.

Screenshots

Interval(x)3 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is ads: Interval(x) at none against Interval Timer's shown. Interval(x) also leads on monetization model (free vs ad-supported). Interval Timer's advantage is ratings volume (3 vs 1). On price, rating, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Interval(x) against 5.0 for Interval Timer. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Scorecard3 real differences · 7 level
Interval(x) versus Interval Timer: the parameters behind the verdict, then further details
ParameterInterval(x)Interval Timer
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 10 days—
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.1 — better18.5
Further details — not scored
Size2 MB27 MB
Age rating4+4+
DeveloperShapeHaven Innovations LLCJessie Washington

Customer experience

Interval(x)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Interval Timer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Interval(x)

No in-app purchases

None

Interval Timer

No in-app purchases

Questions

Is Interval(x) free?
Interval(x) is free to download, with no in-app purchases.
Is Interval Timer free?
Interval Timer is free to download, with no in-app purchases.
Which has better reviews, Interval(x) or Interval Timer?
Interval(x) and Interval Timer are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Interval(x) or Interval Timer have ads?
Interval Timer shows ads; Interval(x) does not.

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